Results 231 to 240 of about 14,854 (254)
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Advances in Space Research, 2016
Abstract Ambiguity Resolution (AR) is a key technique in GNSS precise positioning. In case of weak models (i.e., low precision of data), however, the success rate of AR may be low, which may consequently introduce large errors to the baseline solution in cases of wrong fixing.
Yanqing Hou, Sandra Verhagen
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Abstract Ambiguity Resolution (AR) is a key technique in GNSS precise positioning. In case of weak models (i.e., low precision of data), however, the success rate of AR may be low, which may consequently introduce large errors to the baseline solution in cases of wrong fixing.
Yanqing Hou, Sandra Verhagen
exaly +2 more sources
Reliable partial ambiguity resolution for single-frequency GPS/BDS and INS integration
GPS Solutions, 2016Correctly fixing carrier phase integer ambiguities is a prerequisite to achieve high-precision positioning solutions from global navigation satellite system (GNSS). However, for the single-frequency dynamic users, a low ambiguity resolution (AR) success rate is usually associated with the small number of visible satellites.
Houzeng Han +3 more
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Model and Data Driven Partial Ambiguity Resolution for Multi-Constellation GNSS
2014The goal of carrier-phase ambiguity resolution is to exploit that the carrier-phase observations start to act as very precise pseudoranges. With the development of modern GNSS (GPS, BDS, Galileo, Glonass), more than 30 satellites are visible, however, it might be impossible to reliably fix all the ambiguities due to the computation time.
Yanqing Hou, Sandra Verhagen
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IEEE/ION Position, Location and Navigation Symposium, 2010
This paper evaluates the benefit of the partial availability of GPS satellites with L2C signal capability in estimating the ionospheric delay using the dual-frequency L1/L2 code and phase measurements using real data. Compared to the strategy of estimating one slant ionospheric delay (SID) for each satellite, a simplified single differential zenith ...
Da Wang, Kyle O'Keefe
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This paper evaluates the benefit of the partial availability of GPS satellites with L2C signal capability in estimating the ionospheric delay using the dual-frequency L1/L2 code and phase measurements using real data. Compared to the strategy of estimating one slant ionospheric delay (SID) for each satellite, a simplified single differential zenith ...
Da Wang, Kyle O'Keefe
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Application of optimal stopping theory in batch partial ambiguity resolution
GPS Solutions, 2023Chenglong Zhang +4 more
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Partial ambiguity resolution considering the multipath effects in a canyon environment
Survey Review, 2023Yi Dong +4 more
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2018
Knowledge of differential inter-system biases (DISBs) is critical to integrate observations from mixed GNSS. If the corresponding DISB could be calibrated in advance, only one pivot satellite is sufficient for ambiguity resolution on overlapping frequencies, which is the so-called tight combining (TC) strategy. Considering that GPS and Galileo transmit
Qing Zhao +4 more
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Knowledge of differential inter-system biases (DISBs) is critical to integrate observations from mixed GNSS. If the corresponding DISB could be calibrated in advance, only one pivot satellite is sufficient for ambiguity resolution on overlapping frequencies, which is the so-called tight combining (TC) strategy. Considering that GPS and Galileo transmit
Qing Zhao +4 more
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Kalman Filter Based Partial Ambiguity Resolution Methods for Relative Positioning
ION Pacific PNT, 2017Y. Arakawa, K. Abe, Y. Kubo, S. Sugimoto
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A Multi-GNSS PPP Partial Ambiguity Resolution Method Based on Observations Weight Ranking
The International Technical Meeting of the The Institute of Navigation, 2023Zhiguo Sun +4 more
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